Thank you for your query.
I can understand your dilemma. Without having a look at the blotches that you mention it is very difficult for me to give you any advice. It is quite likely that your daughter might have hurt herself and the bruise
must be giving the colour that you are mentioning. It takes nearly a week to ten days for the bruise to disappear and that is why your doctor has advised not to worry.
I suggest that you wait for another day or two and if the blotches do not disappear then consult your doctor once again.
I hope I have answered your query to your satisfaction.
Wishing your daughter all the best.